Gcse Mathematics Linear Worksheet - 2013 Page 7
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17MARK SCHEME – GENERAL CERTIFICATE OF EDUCATION MATHEMATICS– 43651H – NOVEMBER 2013
Answer
Mark
Comments
Q
oe 13 or 39 seen as numerators or
(24 ÷ 3) + 5 or 13 or 24 + 15 or 39
M1
13
denominators scores M1, eg in
24
A1
13
or 13 and 39
39
or 13, 13, 13
*7
Alt 1
or 13 : 26
Q1ft
Strand (ii)
13
1
Yes ticked and
=
or
39
3
ft on wrong calculation for 24 ÷ 3 and No
equivalent, eg 3 13 = 39,
ticked
or 39 ÷ 13 = 3
SC1 Yes (incorrect or no working)
M1
5
15
A1
5
1
*7
=
15
3
Alt 2
Yes ticked and clear explanation that
Q1
Strand (ii)
same proportion of blue added
SC1 Yes (incorrect or no working)
This scheme is for a ‘written’ explanation with no contradictory values calculated.
B1
Yes ticked
Full explanation that the extra added
Q2
*7
Strand (ii)
are in the same proportion.
Alt 3
Q1 partial explanation
1
eg As
of the extra are blue
eg 5 of each colour
3
7 of 17
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